report this ad
Random Quiz
Quizzes
Featured
Popular
Type
Ratings
Favorites
Difficulty
Length
Date
Guides
Categories
Overview
Sports
Geography
Music
Movies
Television
Just For Fun
Miscellaneous
History
Literature
Language
Science
Gaming
Entertainment
Religion
Holiday
Quiz Lab
Summary
Popular
Recent
Games to Consider
Editor Picks
Curator Picks
Create
Dashboard
Create a Quiz
Playlist Dashboard
FAQ
Creation Guides
Groups
Popular
Your Groups
Sporcle News
Recent Discussions
Add a New Topic
Achievements
All Badges
Newest
Oldest
Leaderboards
Sporcle Live
Overview
Locations & Scores
Leagues
Theme Nights
Pub Owners
Private Events
Contact
Become a Host
×
Name the mathematical trick
Random
Science
or
math
Quiz
Can you name the mathematical trick?
by
Xedi
Quiz not verified by Sporcle
Popular Today
Countries: Without First & Last Letter
13,002
Sets of Three VIII
9,704
Find the US States - No Outlines Minefield
6,817
True or False Logic Quiz
6,197
Last 25 Years: 'P' Movies
6,039
And more...
plays
Rate 5 stars
Rate 4 stars
Rate 3 stars
Rate 2 stars
Rate 1 star
How to Play
Click the green button to start and enter the correct answers below
Also try:
Human Organs by Picture (Warning: Gross!)
Challenge
Share
Tweet
Embed
Score
0
/10
ll
Timer
10:00
Play
Enter answer:
You got
%
Avg Score
%
Try Again
Share Results
Quiz Stats
Play Another
Used to perform surgery and prove the h-cobordism theorem.
Allows to prove the Nullstellensatz from a weak version.
Used to prove complete reducibility of Lie groups.
Proves isotopy of homeomorphisms of a ball that agree on the boundary.
Proves that knots don't have inverse under knot-sum using an infinite sum of knots.
Proves that for any projective module A over R, there is a free module F with A+F = F.
Used to prove a series expansion for the cotangent function.
Used to prove Godel's incompleteness Theorems
Used as a partial replacement of the Axiom of Choice when the Axiom of Replacement is available.
Used to prove Darboux's Theorem in symplectic geometry.
report this ad
You're not logged in!
Compare scores with friends on all Sporcle quizzes.
Connect with Facebook
Connect with Google
Sign Up with Email
OR
Log In
Remember Me
Forgot?
Log In
You Might Also Like...
Prime Numbers
Really Tough Math Challenge
Magic Hexagon
(warning: may contain spoilers)
Show Comments
Extras
Report
Nominate
Tags:
math
,
trick
report this ad
Go to the Sporcle.com Mobile Site →

## Show Comments